Ink-eraser.



0. w. Joflfisbn & E. A. SCOTT.

INK ERASER. APPLICATION IILED SEPT. 26, 1901.

Patented Sept. 29, 1908.

UNITED sTArrps PATENT ()FFICE.

OSCAR W. JOHNSON, OF ALLENDALE, NEW JERSEY, AND EDWIN A. soorr, 0F

' NEW YORK, N.

Specification of Letters Patent.

Patented Sept. 29, 1908.

Application filed. September 26, 1907. Serial No. 894,654.

To all whom it may concern:

Be it known that we, OSCAR W. JOHNSON, a citizen of the United States, and "a resident of Allendale, county of Bergen, and 'State of New Jersey, and EDWIN A. SCOTT, a subject of His Britannic Majesty, and a resident of Brooklyn borough, New York city, and State of New York, have invented certain new and useful Improvements in Ink Erasers, of which the following is a specification.

The object of our invention is to provide an improved ink eraser in which there is a removable and reversible cutting blade, and in which the cutting blade is of peculiar formation so as to present more than one cutting pgint in addition to more than one cutting e ge. V

Broadly speaking, our invention consists in an eraser provided with. a removable and reversible blade havin a slot cutl len thwise of the blade, which wil allow the bla e to be pulled out part-way and reversed in the fork or handle without removingv the blade, and which will also permit the easy removal of the blade entirely so that. a fresh blade may be inserted when the first blade is worn on all of its cutting edges. The blade itself is provided with truncated ends so that two cutting points are available at each end of the blade, one at each end of. the cutting edge.

The means by which the blade is detachably and firmly held within .the fork or handle may be varied as desired. We preferscrews which pass through the slot of the blade in such a manner that one of them has to be removed to allow the blade to be reversed, and both have to be removed to allow a fresh blade to be substituted.

One form of our invention is shown in the accompanying drawing in which:

Figure 1 is a front elevation. Fig. 2 is a similar elevation with the blade in the act of reversing.

Same letters indicate similar parts in the different drawin s.

A is the hand e of the eraser and terminates in a fork B.

C is the eraser blad'e formed with two side cutting edges 0, a, and two straight end cut ting edges 1), b, the extremes of which 0, c, serve as cutting oints, while the cutting edges serve as t e usual 'scra ing edges.

This blade is provided with a on 'tudinal slot (1, of suflicient length to permit t e blade to reverse upon theforward fastening point e, which, in this case for convenience, is a screw as shown in Fig. 2. The other fastening point f, serves to hold the blade from turning when in position as shown in Fi 1, and as above stated, has to be removed w en it is desired to reverse the blade and use the other cutting edge and cutting points when those at one end of the blade have dulled.

As before stated, the special character of fastening device is unimportant.

We claim: An improved ink eraser which consists of a handle having a forked end, a slotted blade, removably and reversibly set in said fork and fastening devices set in said forked end'and adapted to pass throu 11 said slotted blade whereby the removal oi one of which permits the reversal of the blade, while the removal of both permits the entire removal of the blade for resharpening. I

OSCAR W. JOHNSON. EDWIN A. SCOTT. Witnesses:

HORATIO A. CLARK, HY. W. LETCHER. 

